The Suevia 1020876 automatic purge is an essential accessory for drinking bowls, designed to prevent water from freezing in winter by ensuring a continuous, slow water flow. This system purges water at approximately 1 liter per minute, draining it through a hose into the floor. It is installed between the water supply and the drinking bowl, compatible with all drinking bowls featuring a 12.7 mm (½ inch) connection. This genuine Suevia part is suitable for various Suevia drinking bowl models, including 100, 100-S, 101, 101-S, 1200, 1200-S, 600, 600-S, 610, 610-S, 620, 620-S, 630, 630-S, 640, and 640-S, providing reliable frost protection for livestock watering systems.